Document Detail

Indirect determination of dichlorodiphenyltrichloroethane (DDT) after dechlorination with magnesium/palladium bimetallic particles and potentiometric measurements.
MedLine Citation:
PMID:  20419289     Owner:  NLM     Status:  MEDLINE    
Determination of chlorine ions of pesticides was performed after dechlorination reaction using a palladium/magnesium system. Chlorine ions were quantified by potentiometry with ion-specific electrode. Rates of dechlorination of 100 microg of DDT as a function of reaction time and percent (wt/wt) of palladium deposited on the magnesium particles were determined. The best reaction conditions to DDT dechlorination were achieved with an acetone/water (1:1) solution and DDT reaction with a 0.27% (wt/wt) palladium/magnesium bimetallic system at room temperature for 10 min. The detection limit was of 0.24 microg/mL. This low cost method showed an efficiency of 92% in determining chlorine ions derived from DDT, it is fast, requiring no specialized laboratory equipment.
Maria Amélia A Estrela; Jurandir R SouzaDe; Sílvia C L Dias; José G Dórea
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-04-24
Journal Detail:
Title:  Bulletin of environmental contamination and toxicology     Volume:  84     ISSN:  1432-0800     ISO Abbreviation:  Bull Environ Contam Toxicol     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-05-21     Completed Date:  2010-08-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0046021     Medline TA:  Bull Environ Contam Toxicol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  574-6     Citation Subset:  IM    
Laboratório de Química Analítica e Ambiental, Instituto de Química, Universidade de Brasília, P.O. 4478, Brasília, DF 70.904-970, Brazil.
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MeSH Terms
DDT / analysis*,  chemistry
Environmental Monitoring
Environmental Pollution / analysis*
Environmental Remediation / methods
Limit of Detection
Magnesium / chemistry*
Palladium / chemistry*
Pesticides / chemistry*
Reg. No./Substance:
0/Pesticides; 50-29-3/DDT; 7439-95-4/Magnesium; 7440-05-3/Palladium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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